Fusarium oxysporum degradation and detoxification of a new textile-glycoconjugate azo dye (GAD)

Potential of endophytic fungus Phomopsis liquidambari for transformation and degradation of recalcitrant pollutant sinapic acid

“…Therefore, microbiological process of transformation and degradation of toxic organic pollutants are now considered as a promising method for the problem of industrial wastewater pollution (Porri et al 2011;Hadibarata & Kristanti 2014). However, earlier work on phenolic compounds catabolism with various microorganisms, showed their incapability of transforming sinapic acid, even though they could metabolize p-coumaric, caffeic, 4-hydroxybenzoic, and ferulic acid pollutants (Delneri et al 1995;Edlin et al 1995;Sampaio 1999), suggesting that the distributional difference of hydroxyl and methoxy groups on the carbon atom of an aromatic ring could play an important role in the uptake and degradation of sinapic acid by microorganisms, which seriously hindered the removal effect and rate of phenolic pollutants because sinapic acid compound is also one of the most representative polyphenolic type pollutants with about 4 mg L À1 present in OMW (Fiorentino et al 2003;Prapakornwiriya & Diosady 2008;Elaoud et al 2011).…”

A New Generation of Glycoconjugated Azo Dyes Based on Aminosugars

“…A solution of 4 [11] (2.60 g, 10.0 mmol) in MeOH (70 mL) was treated with succinic anhydride (1.20 g, 12.0 mmol, 1.2 eq) and stirred at room temperature until the starting material was completely disappeared (TLC, 9:1 EtOAc-i PrOH). After 2 h, Et 3 N (3 mL) was added to the reaction mixture, which was stirred for 10 min at room temperature and then was repeatedly coevaporated with toluene ( (7). A solution of amine 5 [8] (1.00 g, 1.97 mmol) and succinic anhydride (216 mg, 2.16 mmol, 1.2 eq) in MeOH (40 mL) was allowed to react in the reaction conditions described for the preparation of 6, leading to the residue (1.17 g) constituted exclusively ( 13 C NMR) by 7 (98% yield).…”

“…Uniquely, GADs can also be used effectively to dye natural fibres, such as wool and silk, allowing the study of solutions to novel dyeing technologies. Moreover, biodegradation and detoxification of a selected diestereal GAD by Fusarium oxysporum gave promising results [7] for the treatment of the aqueous waste, representing a step further towards environmentally friendly tinctorial processes.…”

Industrial Wastewater Treatment: A Challenging Task in the Industrial Waste Management

“…Reverse multistage coagulation followed by ozonation was shown to be superior to their sequential application of single pass. The advantages of this application in several steps was more convincing if the wastewater is with recalcitrant composition [116][117][118][119][120].…”